iPhone UIToolbar UIButtonItem highlighting

Question

I have subclassed UIToolbar and within it have created a set of UIButtonItems, all added in order and nicely spaced with flexible spaces. I now want to toggle one of the UIButtonItems each time it is tapped (just like the shuffle button in iPod, white blue white blue. I have maintained a reference to the UIButtonItem

// interface UIButtonItem *_shuffleButton; // released in dealloc

// implementation UIImage *_shuffleButtonImage = [UIImage imageNamed:@"shuffle_icon_200x100.png"]; _shuffleButton = [[UIBarButtonItem alloc] initWithImage:_shuffleButtonImage style:UIBarButtonItemStylePlain target:self action:@selector(shuffleButtonTapped)];

So now in shuffleButtonTapped I want to do something like _shuffleButton.highlighted = YES; or _shuffleButton.selected = YES;

but neither of these work.

I have searched high and low and after failing to find anything I am starting to think I am missing something, can anyone tell me what it might be?? Thanks.

Answer 1

if you just want to show wome simple images as a buttons, use UITabBar instead. It will make selection UI changes automatically.

Answer 2

Here is what I did to create my own navigationItem Button which is in fact a view and can be animated just like any other view.

UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom ]; btn.frame = CGRectMake(0, 0, 30, 30.0); [btn setBackgroundColor:[UIColor colorWithRed: 0.3f green:0.3f blue:0.3f alpha:1.0f]];

[btn setImage:[UIImage imageNamed:@"image.png"] forState:UIControlStateNormal]; [btn addTarget:viewController action:@selector(rightButtonTouchUpInside) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem *customItem = [[UIBarButtonItem alloc] initWithCustomView:btn]; viewController.navigationItem.rightBarButtonItem = customItem; [customItem release];